Hi,
I was diagnosed with PMR after Covid vaccine. It’s been about 4 years now and I have no pain behind my knee as of this time. I did get GCA and the doctor put me on 60 mg of prednisone. I did experience pain behind knee and had to use crutches as I could not walk on that leg. It was water retention built up from the high dose of prednisone. It went away after my prednisone dose was being tapered down. One thing I might add is the doctor prescribed me Rinvoq for my GCA as it is a prescription for GCA. After 5 months on it I was still in pain from my PMR as it does NOT address PMR. Wrong medication. I am now back on prednisone and so far I find that’s the only thing that makes me feel better regarding my PMR.

Can you feel any thing behind your knee? Take care. It’s a challenge for sure.